— 220 — 
4.  Alpestriformes. 
A. Leaves. distinctly sulcate, papillose above and carinate; : 
12.G.exspiticia Bridel. — Dryptodon Brid.; Grimmia Juratzka. 
G. suleata Sauter. TIRAS 
Leaves ovate-oblong obtuse, not recurved below, suberect | 
when moistened; basal cells short; hairpoint very short us. 
wanting. Capsule oblong-cylindrie chestnut-brown; lid conic; 
pedicel straight. Tufts olive-green 0,5--2 e. m. high, very — 
dense. Dioecious. — Rocks and stone-walls r. Eur, Switzerl! — 
Austria: Schimper. France: Husnot. r "o 
* G.aretiea C. Mueller. 
»Leaves shorter, cucullate at apex. — Amer. Greenl.»: C.M. s 
in Lange, Greenl. fl. 4 
B. Leaves not or (sometimes in G. alpestris) faintly sulcate, 
smooth, ; 
à. Leaves channelled, not recurved below. Capsule long 
exserted. Us, dioecious, ub 
19.G.eommutata. Huebener. -—  Dicranum ovatum Swarts; — 
Grimmia Weber et Mohr. jid 
Leaves ovate-lanceolate, flat or -subinyolute above, patent | 
when moist, the uppermost much larger; basal cells long, the , 
upper short and opake; hairpoint rough not long, sometimes | 
wanting. Capsule oval brown; lid rostellate; annulus broad; UE 
pedicel straight. Tufts very loose, grayish green above, brown 
or blackish below, 2—4 centim. high. Dioecious. — Rocks, ; 
gen. siliceous, princ. below alps. Eur. not r. Sweden, Norway, - 
Switzerl.! Amer. Can. Brit. CoL: Macoun. U. S; Roell . 
14.G.teretinervis. Limpricht. ies zoidgiovat 
Differs from the last: Leaves shorter, involute nearly, all 
around, suberect when moist; nearly all cells short; hairpoint 
us. wanting. Tufts blackish. Stem often with brood-corpuscles. 
Capsules unknown. — Calcareous rocks r. Eur. Switzerl.| Austria: 
Gander. Greece: Haussknecht. pre wh p 
15.G.aretophila Kindb. rev. bryol. 1896. x 
Leaves ovate-oblong, involute above, suberect when moist, 
appressed when dry, the uppermost not larger; basal cells gen. 
short, the upper short opake; hairpoint not long. Capsule 
suboblong brownish; lid apiculate; annulus indistinct; pedi 
straight. Tufts cohering us. blackish when dry, about 3. c. 
high. — Amer, r. Greenl,: Berggren. Can. Cypress hi 
Macoun. 
